Radiator and sight-tube for motor-vehicles



I. L. MARKS.

I RADIATOR AND SIGHT TUBE FOR MOTOR VEHICLES.

APPLICATEON FILED JULY 2. 191B.

1 ,3 1 Pamnfefl Sent. 23. 1919.

awbawtoz l 1 the level of the water in I be easily ascertained by consultmg the-sight ISA'AG L. MARKS, OF SAN FRANCISCO, CALIFORNIA.

RADIATOR AND SIGHT-TUBE FOR MOTOR-VEHICLES.

Specification of Iietters Batent.

Application filed July 2, 1918. Serial No. 243,087.

v To all whom it may concern:

Be it known that I, ISAAGIJ. MARKS, a

citizen of the United States, residing at- San Francisco, in the county of San Francis'co and State-of California, have invented certain new and useful Improvements in Radiators and Sight-Tubes for Motor-Vehicles, of which the following is a specification.

This invention relates to an improved radiator and sight tube for motor vehicles and has as its primary object to provide an arrangement wherein the sight tube Will be built into theconst'ruction of the radiator and operatively connected therewith so that the radiator may tube.

The invention has as a further object to provide an arrangement wherein the sight tube will lie-whollyjwithin' the lines of the radiator casing so that possibility of accidental injury to the sight tube will be accordingly reduced to a manimum. The invention has as a still further object to. provide a construction wherein the sight tube will be inclosed within a suitable casing therefor and wherein an improved mounting for the casing will be employed,

acting to center the. casing around the tube.

' And a stillfurther object of the. invention is to provide a construction wherein, when desired, the sighttube may be readily removed so that in case of accidental injury to the tube, it'may be readily renewed.

Other and incidental ob ects will appear as the description proceeds. In the draw- 'ings wherein I have illustrated the preferred embodiment of the invention, and wherein similar reference characters designate corresponding parts throughout the 2 severalviews:

. ,Figure 1 is a front e1evation of my improved radiator and sight tube, 4 Fig. 2 is a fragmentary sectional view f showing the manner in which the sight tube is connected at its upper end with the radij-atorcasing,

Fig. 2 is a view similar to 'Fig. and

showing the manner in which the sight tube is connected at its lower end to the radiator casing, and

Fig. 3 is a fragmentary transverse sectional view taken on the line. 33 of Fig. 2 and showing the manner in which the cascoupling nut 16.

the nipples 13 and 15 to communicate' therethrough with the radiator casing is a and clamped by seal the sight tube in position.

' so that the possibility radiator will, of course,

Patented Sept. 23, m

ing of. the radiator is recessed to receive the upper end portion of the sight tube.

Referring more particularly to the drawings, I employ a radiator 10 having 2. casing 11, the upper portionof which is formed medially of its front face with an inwardly directed recess 12 preferably arcuate in cross section, as particularly shown in Fig. 3. The body of radiating cells of the radiator may be of any approved character. Depending from the top wall of the recess 12 axially thereof is a nipple 13 upon which 1s screw threaded a coupling nut 14L.v Rising from the inner side wall of the bottom portion of the radiatorcasing is a similar nipple 15 arranged in vertical alinement with the nipple 13 and threaded to receive a Snugly fittingbetween sight tube 17 surrounded at its ends by suitable resilient packing Washers 18 re j ceived within the coupling nuts 14 and 16 the said nuts to tightly Surrounding the sight tube is a casing 19 therefor. Between the ends of protecting sleeve or v this tube and the coupling nuts14c and 16 are interposed collars 20 snugly surroundw ing the sight tube. These collars are constructed of rubber or other compressible material and upon the inner ends thereof are formed with annular flanges 21 fitting within the ends of the casing and acting to center the casing around the sight tube. At the same time, the collars will act to center the casing longitudinally with respect.

to the tubeand will resiliently bear against the ends of the casing to prevent any looseness or rattling thereof as well as to also prevent axial rotation of the casing. The casing 19 is formed uponthe front side thereof with a longitudinally extending slot 22.. Attention is now directed to the fact that the sight tube and associated parts are disposed wholly within the lines of the radiator to the sight tube will be reduced to a minimum. Snce the tube is in communication at its ends with the top and bottom portions of the radiator casing, water within the rise within the sight of the water in the easily determined by tube so that the level radiator may thus be of accidental injury consulting said tube through the s1ot22 in the front of the tube casing. I thus provide a particularly simple and efiicient construction for the purpose set forth. Should the sight tube become accidentally broken or should it, for any reason, be desired to remove the said tube, it will be noted that the collars 20 at the ends of the casing 19 are relatively thick and may accordingly be compressed sufficiently to allow the removal of the coupling nuts- 14 and 16. After these nuts the confronting inner ends of said connecting means and the casing exteriorly of said connecting means for centering the casing with respect to the tube.

2. A device of the'character described inhave been removed, the tube and its casing may be readily displaced. The sight tube may consequently be easily cleaned or 15 v eluding a sight tube, supportin means therefor, a casing surrounding t e tube, means carried by said supporting means and connecting the tube therewith, collars surrounding the tube and bearing between the ends of the casing and the conironting inner ends of said connecting means for support ing the casing longitudinally with respect to the tube, and flanges formed on the inner ends of said collars and fitting within the ends of the casing for-centering the casing with respect to the tube.

3. A device of the character described including a sight tube, supporting means therefor, means adjustable upon said supportin means and connecting the tube therewith, a casing surrounding the tube and independent of said connecting means, and means bearing between the connecting means and the ends of the casing for supporting the casing exteriorly of said connecting means with respect to the tube, said latter means being compressible whereby said connecting means may be adjusted toward each other and freed from said supporting means.

In testimony whereof I aflix my signature.

ISAAC L. MARKS. 14. 8. 

